What is lift-off speed?(a) The speed at which the aircraft generates enough power to become airborne(b) The speed at which the aircraft generates enough speed to become airborne(c) The speed at which the aircraft generates enough thrust to become airborne(d) The speed at which the aircraft generates enough lift to become airborneThe question was asked in an interview for internship.The question is from Take-off Performance topic in chapter Take-off and Landing Performance of Aircraft Performance

What is lift-off speed?(a) The speed at which the aircraft generates e

1.	What is lift-off speed?(a) The speed at which the aircraft generates enough power to become airborne(b) The speed at which the aircraft generates enough speed to become airborne(c) The speed at which the aircraft generates enough thrust to become airborne(d) The speed at which the aircraft generates enough lift to become airborneThe question was asked in an interview for internship.The question is from Take-off Performance topic in chapter Take-off and Landing Performance of Aircraft Performance
Answer» CORRECT answer is (d) The SPEED at which the aircraft generates enough LIFT to become airborne Easiest EXPLANATION: The lift-off speed is the speed at which the aircraft generates enough lift to become airborne. Just before reaching this speed the aircraft rotates into a nose-up altitude which is equal to the lift-off angle of attack.

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